On November 28, 2016, the NRC issued a Notice of Violation and Proposed Imposition of Civil Penalty in the amount of $140,000 to Tennessee Valley Authority (TVA) for a Severity Level III violation. The violation involved the failure to conduct compensatory fire watches as required by TVA corporate procedures and 10 CFR 50.48, "Fire Protection." Specifically, on multiple occasions in May 2015, hourly fire watches required as compensatory measures for fire protection equipment that was out of service in the Unit 3 Diesel Building and Unit 3 4kV Shutdown Board Room were not performed.